2. The new News Feed. The biggest change made in 2013, Facebook updated the primary news feed look and feel to better align with the mobile product.

3. Timeline tweaks. Facebook made some subtle adjustment to user timelines with the introduction of boxes to showcase the things you like, including movies, TV shows, and books.

4. “I am doing…” Users can tell their friends what they are doing in status updates. For example: I am watching tennis on ESPN.

5. Verified pages and profiles. Facebook borrowed a popular Twitter feature and introduced a verification feature to help users identify genuine high-profile accounts from knockoffs.

6. Simplifying Facebook ads. The suite of Facebook ad types were significantly reduced to make it easier for businesses of all sizes to navigate the self-serve ad platform.

7. Introduction of hashtags. This has been one of the most talked about changes in 2013. Facebook introduced hashtags to help categorize conversations and make the search function more useful.

8. Videos on Instagram.Although this change wasn’t specifically made to Facebook, Instagram is owned by Facebook and has made integration between the services a priority. Many people viewed this change as a response to popular short-form video platform Vine.

9. Farewell EdgeRank, hello new algorithm. Page managers prided themselves on understanding EdgeRank, which helped determine how much visibility a post would receive within the Facebook news feed. Facebook canned EdgeRank in favor of a new algorithm that takes more than 1,000 factors into account when assessing its popularity and value in the news feed.